The planets of our solar system have experienced epic catastrophes throughout their long history, both raining down from outside and bubbling up from within.
Nemesis: The Sun's Evil Twin
Could there be a monstrous, undiscovered star orbiting our own Sun? Could it be scattering killer comets throughout our Solar System like clockwork every 26 million years?
How the Solar System was Made
At 4.6 billion years old, the Solar System is our solid, secure home in the Universe. But how did it come to be? In this episode we trace the system's birth from a thin cloud of dust and gas.
Crash Landing on Mars
What might happen if the first manned mission to Mars crashes hundreds of miles from the rocket that would take them back home? Could they survive the crash, and travel across the brutal Martian surface to their home ship?
Worst Days on Planet Earth
Earth may seem like the most hospitable planet in the solar system. But look again. Startling new discoveries reveal the blue planet has been plagued by more chaos and destruction than scientists once imagined.
How Big, How Far, How Fast
In this episode, our cast uses awesome analogies to bring the biggest objects, farthest distances and fastest speeds down to earth.
UFO: The Real Deal
Many argue that flying saucers and other extra-terrestrial space ships continuously visit the earth. If that were true, what kinds of technologies would such alien spacecraft require?
God and the Universe
Since the dawn of civilization, humans have wondered who or what created the universe. Religion offers a spiritual answer, but do the latest discoveries in physics show evidence of a transcendent intelligence?
There really are ice worlds like Hoth from Star Wars. In this episode, we explore icy planets and moons, discover the role of cold in the Universe, and learn about the importance of ice to the development of habitable worlds.
Our Place in the Milky Way
An exploration of Earth's cosmic neighborhood. Looking beyond the borders of our solar system, what's nearby in our galaxy? How do the other objects in our local area influence life on Earth?
What does the Universe sound like? From the sweep of a pulsar, to the deafening roar of our boiling sun this episode explores the undiscovered soundscapes of the solar system, the galaxy, and the entire cosmos.
Within our immense universe lies a lesser-known world of tiny particles. From strange ghostly neutrinos that pass right through matter to mysterious objects with names like MACHOs and WIMPs.
Ride the Comet
Hitch a ride on the journey of a comet as it roars from the cold, dark outer reaches of the solar system to the fiery surface of the Sun.
When Space Changed History
It may seem like seem like science fiction, but the cosmos isn't just something way out there. Many times in human history, objects or forces from space have changed the course of life on earth.
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